ICS87321AMI IDT, Integrated Device Technology Inc, ICS87321AMI Datasheet - Page 11

• Manufacturer Part Number: ICS87321AMI
• Description: IC CLK GEN /1 /2 DIFF 8-SOIC
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: HiPerClockS™r
• Type: Clock Generatorr

Specifications of ICS87321AMI

• Pll: No
• Input: HCSL, LVDS, LVHSTL, LVPECL, SSTL
• Output: LVPECL
• Number Of Circuits: 1
• Ratio - Input:output: 1:1
• Differential - Input:output: Yes/Yes
• Frequency - Max: 700MHz
• Divider/multiplier: Yes/No
• Voltage - Supply: 2.375 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC
• Frequency-max: 700MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 800-1201; 800-1201-5; 800-1201; 87321AMI

T
Figure 4A and Figure 4B show examples of termination for 2.5V
LVPECL driver. These terminations are equivalent to terminating
50 to V
IDT
F
ERMINATION FOR
ICS87321I
÷1, ÷2 DIFFERENTIAL-TO-3.3V LVPECL CLOCK GENERATOR
IGURE
VCCO=2.5V
VCCO=2.5V
™
F
/ ICS
IGURE
2,5V LVPECL
Driv er
2,5V LVPECL
Driv er
CC
4A. 2.5V LVPECL D
™
- 2V. For V
3.3V LVPECL CLOCK GENERATOR
4C. 2.5V LVPECL T
Zo = 50 Ohm
Zo = 50 Ohm
Zo = 50 Ohm
Zo = 50 Ohm
2.5V LVPECL O
CC
= 2.5V, the V
RIVER
2.5V
R1
250
ERMINATION
CC
R1
50
R2
62.5
- 2V is very close to ground
T
ERMINATION
R3
250
UTPUTS
R2
50
R4
62.5
E
XAMPLE
+
-
+
-
E
2.5V
2.5V
XAMPLE
11
level. The R3 in Figure 4B can be eliminated and the termination
is shown in Figure 4C.
F
IGURE
VCCO=2.5V
2,5V LVPECL
Driv er
4B. 2.5V LVPECL D
Zo = 50 Ohm
Zo = 50 Ohm
ICS87321AMI REV. A APRIL 7, 2009
RIVER
R1
50
T
ERMINATION
R2
50
R3
18
+
-
E
2.5V
XAMPLE